Product comparison · Electric Scooters
Hiboy S2 vs iScooter i9
The Hiboy S2 scores 5.4 and ranks 31st of 47 in Electric Scooters; the iScooter i9 scores 4.7 and ranks 46th of 47 in Electric Scooters. The S2 leads on ride hardware, the i9 on weight.
All 17 Hiboy products 
Hiboy S2
$353 · 31st of 47 in Electric Scooters
Buy Now- Ride Hardware — 3 against 2
All 11 iScooter products 
iScooter i9
$240 · 46th of 47 in Electric Scooters
Buy Now- Weight — 10 against 8
Across everything we scored, Hiboy S2 sits 0.74 ahead — led by ride hardware.
Verdict
S2 ahead · +0.74 (5.4 vs 4.7)Pick the Hiboy S2 when
Warranty & support matters3vs1
Ride hardware matters3vs2
Features matters7vs6
Pick the iScooter i9 when
Weight matters10vs8
Price matters$240vs$353
Scored 19 October 2026 from published specs and owner reviews. We don't buy or test units. How we score
Most common complaints
Hiboy S2
Overall score 5.4- short range for heavy riders
- harsh ride
- weak suspension
iScooter i9
Overall score 4.7- motor smaller than advertised
- reliability
From each product's own owner reviews and retailer ratings.
Usability Hiboy S2 and iScooter i9, scored 0 to 10
WeightHiboy S2: 8iScooter i9: 10 (higher)
Hiboy S2
- 35.5 lb in the manual
- Store: 35.49 lb on the product page
iScooter i9
- 24.3 lb
BatteryHiboy S2: 2 (higher)iScooter i9: 1
Hiboy S2
- 281 Wh (36 V, 7.8 Ah) in the manual, commuter scooter ladder
- Store: 36 V 7.5 Ah (270 Wh) on the product page
iScooter i9
- 270 Wh (36 V, 7.5 Ah) on the commuter scooter ladder
- Conflict: spec table 7.8 Ah (281 Wh), comparison table and manual 7.5 Ah
Ride HardwareHiboy S2: 3 (higher)iScooter i9: 2
Hiboy S2
- rear disc brake, dual rear springs, 8.5-inch honeycomb solid tires
iScooter i9
- rear disc and electronic front brake, no suspension, 8.5-inch solid tires
FeaturesHiboy S2: 7 (higher)iScooter i9: 6
Hiboy S2
- one-step fold, lights, app lock, display, cruise control
- Water: IPX4 stated, below the IPX5 point
iScooter i9
- one-step fold, front and rear lights, display, cruise control
Warranty & SupportHiboy S2: 3 (higher)iScooter i9: 1
Hiboy S2: 1 Year · iScooter i9: 6 Months.
Hiboy S2
- one year on battery and motor
iScooter i9
- six months on battery, motor and controller
- Badge: product page shows 12 months; policy gives six months on electrics
Same score
VerificationHiboy S2: 6iScooter i9: 6
Hiboy S2
- UL certificate UL-US-2422581-0 names S2; listed under Freeman IT FKIS.E535405
- Searched: UL Solutions certificate (brand-hosted) UL Certipedia Intertek SGS TÜV SÜD CPSC Health Canada
- Record: UL Solutions certificate (brand-hosted), ANSI/CAN/UL 2272, S2, F19 is identical to S2, Freeman IT Limited
- Record: UL Product iQ, ANSI/CAN/UL 2272, S2, Shenzhen Freeman IT Limited
iScooter i9
- TÜV Rheinland UL 2272 record CU 72502272 names the i9 (maker Shenzhen Xincheng Times)
- Searched: Certipedia UL Intertek TÜV SÜD CPSC Health Canada
- Record: TÜV Rheinland Certipedia, ANSI/CAN/UL 2272:2024, i8, i9, i9 Pro, S9, S9 Pro (page 1), Shenzhen Xincheng Times Technology Co.,Ltd
Scored for one only
MotorHiboy S2: 4iScooter i9: not scored
Hiboy S2
- 350 W nominal hub
- Peak: 500 W claimed, not scored
iScooter i9
- Peak: 350 W listed, no nominal rating, not scored
Not scored for either
- ValueHiboy S2: not scorediScooter i9: not scored
Social score about the Hiboy S2 and the iScooter i9
RedditHiboy S2: 5 (higher)iScooter i9: 3
The iScooter i9 reading covers the whole brand.
Hiboy S2
Liked
- campus commuting
- side lights
Complaints
- short range for heavy riders
Read the full summary
- r/ElectricScooters: a 230 lb rider got only 6 to 7 mi at top speed (May 2025)
- a parent says the S2 has carried a daughter around campus for a year without problems (Nov 2025)
iScooter i9
Read the full summary
- Brand-level.
- An r/ElectricScooters thread asking whether iScooter is good drew 201 comments (Aug 2024)|An r/ElectricScooters commenter called the brand's support terrible to nonexistent (Dec 2025)
GoogleHiboy S2: 6iScooter i9: not scored
No usable source for the iScooter i9.
Hiboy S2
Liked
- range near claim
Complaints
- harsh ride
- weak suspension
Read the full summary
- Product.
- TechGearLab (bought unit) measured 14 mi of range and 17 mph and found the 8.5-inch solid tires harsh over cracks (Jan 2022)|RiderGuide (measures; purchase not stated) recorded 12.7 mi, 19.0 mph and 31.9 lb (Apr 2021)
iScooter i9
Nothing recorded.
YouTubeHiboy S2: not scorediScooter i9: 6
No usable source for the Hiboy S2; the iScooter i9 reading covers its product line.
Hiboy S2
Nothing recorded.
iScooter i9
Read the full summary
- Product-line.
- Suzy Bee Travels (UK i9, discount code SBT15 in the description) called it a fantastic little commuter after a test ride on hills and rough roads (Nov 2025)
AmazonHiboy S2: 7 (higher)iScooter i9: 5
The Hiboy S2 reading covers its product line.
Hiboy S2
Read the full summary
- Product-line.
- Amazon US listing shared by the S2 and S2 MAX (from Hiboy, sold by Amazon.com) averages 4.2 stars from 1,908 ratings, 70% five-star and 11% one-star (Mar 2026)
iScooter i9
Liked
- cruise control
- folding
Complaints
- motor smaller than advertised
- reliability
Read the full summary
- Product.
- Amazon listing B0FBGNYLR4 sold by iScooter Center, model i9: 3.7 stars from 173 ratings, 57% five-star and 23% one-star (Oct 2026)
Hiboy S2 vs iScooter i9: pros and cons
Hiboy S2
Overall score 5.4Strengths
- Light enough to carry upstairs
- Tires never go flat
- App lock and cruise control built in
- Folds in one step for trains and offices
- Bright lights front and rear plus side lights
Drawbacks
- Harsh ride on small solid tires
- Short range for heavier riders
- Rear suspension does little
- Battery capacity stated two ways
- Only one year of warranty
- Only the rear wheel has a friction brake
iScooter i9
Overall score 4.7Strengths
- Light enough to carry up stairs
- Folds in one step for trains
- Solid tires never go flat
- Low price for a first scooter
- Cruise control on long straights
Drawbacks
- No suspension on rough pavement
- Small battery limits range
- Warranty page gives only six months on battery and motor
- Low rider weight limit
Hiboy S2 vs iScooter i9: the numbers
Price, scores and rank, then only the specs that differ. Green marks the side with more.
- SuspensionHiboyReariScooterNone
- WarrantyHiboy More1 YeariScooter6 Months
Same on both
- CommuterType
- Not listedE-bike class
- Up to 400 WhBattery
- Single motorMotor
- Up to 20 mphTop speed (claimed)
- Up to 25 miRange (claimed)
- Up to 40 lbWeight
- Up to 250 lbMax rider load
- Mechanical discBrakes
- FoldsFolding
- UL 2272 listedSafety listings
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Not sold on either one?
The top-scored and the cheapest other pick from each brand.
More from Hiboy 11 scored in Electric Scooters
- Battery: 601-800 Wh vs up to 400 Wh
- Brakes: Drum vs mechanical disc
- Brakes: Drum vs mechanical disc
- Suspension: None vs rear
More from iScooter 10 scored in Electric Scooters
- Battery: 601-800 Wh vs up to 400 Wh
- Motor: Dual motor vs single motor
- Nothing we record differs.
Hiboy S2 vs iScooter i9: common questions
Is the Hiboy S2 better than the iScooter i9?
On our scores, the Hiboy S2 is ahead, 5.4 against 4.7. The Hiboy S2 leads on ride hardware (3 against 2), battery (2 against 1), warranty & support (3 against 1) and features (7 against 6). The iScooter i9 leads on weight (10 against 8).
Which is cheaper, the Hiboy S2 or the iScooter i9?
The iScooter i9, at $240 against $353: $113 less.
Which has the longer warranty, the Hiboy S2 or the iScooter i9?
The Hiboy S2: 1 Year, against 6 Months.
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Scores calculated 19 October 2026 · Products excluded where fewer than two independent sources cover them · · How we score